Alfred berney



A. BERNEY. .Spark Arr-ester afid Consumer. N0. 239,92 3. Patented April 12,1881.

WITNESSES: INVENTUR N, PETERS. PHOTO-LITHOGRAPHER. WASHINGTON, D C.

UNITED STATES.

PATENT OFFICE.

ALFRED BERNEY, or BOSTON, MASSACHUSETTS, ASSIGNOR T NATHIEL A. BUTTON, OF'SAME 'rLAcn.

SPARK ARRESTER AND CONSUMER.

SPECIFICATION forming part of Letters Patent No. 239,923,1ilated April 12, 1881. Application filed September 28, 1880. (No model.)

To all whom it may concern:

Be it known that I, ALFRED BERNEY, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Spark Arresters and Consumers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others 1 o skilled in the art to which it appertaius to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

1 My invention relates to apparatus or mechanism by which the sparks, cinders, and products of combustion from locomotive and other boilers are arrested and returned to the furnace, to be there consumed and assist in the gener- 2o ation of steam, whereby fuel is eeonomized and a greater amout of steam is generated, in proportion to the amount of fuel consumed, than has heretofore been done; and the object of my invention is to improve the construction of 2 5 spark arresters and consumers, so as to accomplish the arresting and consumption of the sparks, cinders, and the products of combus; tion in a more economical and efficient manner. The invention consists in the construction 0 and arrangement of parts, as will be more fully described hereinafter, reference being had to the accompanying drawings and the lettersof reference marked thereon.

In the accompanying drawings, Figure 1 is 'a longitudinal section of a locomotive-boiler with my improvements attached. Fig. 2 is a horizontal section on line mac. Fig. 3 is an enlarged section of the auxiliary chamber.

In the drawin gs, A represents a locomotive- 40 boiler having the usual furnace or fire-box B,

tubes 0, smoke-arch D, and chimney or smokestack E. The chimney is provided with an inner pipe, 6, over which is arranged a cone, 9, and wire'netting 7a, and-at its lower end an or- 445 dinary draft-pipe or petticoat-pipe, 6, below which are the usual exhaust-tips or blast-pipes. Any other suitable cone and wire-netting may be employed than the one shown, as the sparks are merely checked by these devices and prevented from passing out of the stack.

'An annular space is formed between the inner pipe, 6, and the chimney E, in which are arranged the double-inclined guides or chutes a. a, leading to two pipes, b I), that extend downward to and into one or more auxiliary or enlarged chambers, F. These chambers are preferably made of cast metal and in one piece, and the pipes 11 are screwed into them at the top side, and short air-blast or induct tubes, 0, extending outside of the smoke-arch, and being provided with bell-mouths, (so as to more readily take up the air when movin g forward,) are tapped and screwed into the chambers F at the front side. At the rear end two tubes, G, are screwed into the chamber F, 6 5 which pass through the lower part of the shell of the boiler and extend into the furnace or fire-box. The chamber F is furthermore provided with an annular interior flange or lip, f, so as to reduce the size of the opening leading toward the tubes Gr, and on one side is a lug,

f, into which a steam-pipe, d, is tapped, and

also a curved jet-nozzle, n, which may be either connected by the pipe 01 with the steam-space of the boiler, the exhaust-nozzles, or, if desired, 7 5

with the reservoir of compressed air usually employed for the brakes. The pipe d is provided 'with an ordinary cook or valve to regulate the steam or air. By this steam or air jet the sparks, cinders, products of COIIlbllS-JSO tion are drawn down\the pipes b and forced through the tubes G into the furnace, where they are consumed. By the annular reducing-flange of the chamber F a better vacuum is created in the auxiliary chamber, and the 8 sparks, &c., forced with greater force toward the furnace.

In the furnace is arranged a plate, m, which directs the sparks onto therfire, and a waterdiaphragm, H, is connected with the waterlegs at each side, and by tubes *6 to the waterspace above the crown-sheet.

On each side of the tubes G is placed a pipe,

70, extending toward the front tube-sheet at one end, and into the water-diaphragm H at 5 the other; and into these pipes k is inserted V a jet-pipe, 1, connecting with the steam or water space of the boiler, by which a continuous circulation of water is kept up through the water-diaphragm and the boiler. 10o

Above the usual grate-bars I are arranged a number of water-tubes or hollow grate, K, connected to the front and rear water-legs, so as to have a circulation of water through said tubes. The smaller pieces of coal, as also the ashes, fall through the spaces between the tubes k, and are retained on the grate-bars I and impart their heat to them and assist in heating the water in them. By this means the air passing up between the lower gratebars is also heated to a very high temperature before it reaches the coals upon the hollow bars K, and thus assists in preventing smoke by the hot oxygen uniting with the carbon in the coal. The small pieces of coal, which would be usually wasted by dropping into the ash-pan, are also entirely consumed.

The furnace-door L is made hollow, and has a number of pendent tubes on its inner side, through which'air, admitted to the door by a perforated outer plate, will become heated, and will be projected against the tire and furnish additional oxygen to assist in the consumption of the fuel. An ash-pan of the ordinary construction is arranged below the gratebars.

Instead of the pipe (1 entering into the enlarged chamber 1* direct it may enter into the air-blast or induct-tubes c, as shown by the dotted lines in Fi 3, having the same effect as in the first instance.

Instead of forming the flange f in the chamber F, wooden plugs of different sizes may be inserted into the induct-tubes c with a like beneficial result.

A plain curved pipe, made of larger diameter than the locomotiveboiler tubes, can be used, with steam or air forced into it, similar to the pipe (I, and this, without the air inlet 0 from the outside of the boiler or smoke-arch, will keep the sparks from choking the pipes in most cases. I therefore do not confine myself to a chamber alone in my combinations, but desire that my invention shall extend to pipes from the saddle or stack, to connect with return-tines from the smokearch to the furnace.

The operation of the mechanism and great advantages of myimprovements will be readil y understood by all engineers and those skilled in the art.

I have shown and described, in connection with my spark-arrestin g devices, a furnace and .water heater and circulator, which will form the subject-matter of a separate application, and will not be claimed, cxceptingin combination with the elements of the spark-arrester.

Having thus described my invention, What I claim, and desire to secure by Letters Patcut is- 1. In a spark-arrester, the auxiliary chamber I provided with annular inner fiange, f, boss or lug f, and curved jet 12, cast in one piece, and arranged for operation substantially as described. I

2. In a spark-arrester, the auxiliary chamber F, constructed as shown, with induct-pipe c, steam or air pipe (I, annularchamber (1,0011- duit-pipes b, and return-tines G, all substantially as and for the purpose specified.

3. In a spark-arrester, the auxiliary chamber F, induct air-pipe 0, steam or air pipe d, conduit-pipes b, annular chamber a, stack E, and return-tines G, in combination with the furnace B, having grate-bars I, hollow grate or tubes K, and diaphragm H, with steam-jet Z, all arranged substantially as shown and specified.

4.. In a spark-arrester, a pipe or pipes opening into the interior of a double stack or reservoir above the smoke-arch, combined with a combined steam and airjet, substantially as described and for the purpose set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

ALFRED BERNEY.

Witnesses JAMES NrcHs. (JALLAN, R0131. GUARD. 

